通过对服装的介绍和欣赏,提高对服装文化的审美水平。通过对服装设计练习,培养学生对色彩知识、图案基础知识的综合运用能力3、通过服装设计和表演,激发和提高学生追求美、发现美、创造美的热情和能力emotionalBecauseoftheguerrillaforcesinthesurroundingareahavebeenwithdrawn,activitiesintheLake'sChengWanjunalsorefugeinJapanese,ZhuXiforcesbecamethepuppettoattackkeytargetsEvepuppetattackinginWuzhen,facetheproblemoftheretreatwastomeettheenemy,inadebatewithintheleadership,somebelievethattheelves,concentrateasuperiorforce,surelydo,earlytransferisthebestwaytoreducelosses.DeputyCommanderWangHesongimpassionedstatement:Wuzhenhold,isourmilitary'sduty!Ihavewinaseriesofvictories,morale,Wuzhenbattletovictory,fightthisbattle,aChinesemiracleinthehistoryofguerrillawarfare.CommanderZhuXididnothavemuch,butthefinalword.OnNovember5,weflewoverthetownforseveraldays,bombbursts,tremblingmoantranquiltowninthewar.Peoplehavethefeelingofacatastropheinthetown.6threconnaissancearoundthecommandpersonnelbroughtanurgentintelligence,town-widepanic,inthefaceofnewsoftheJapaneseattacktown,toavoidthescourgeofwar,themajorityofpeopleyoungandoldfledtothecountrysideinthetown.Alsohardtofindaboatintheriver.Pastthebustlingtownjustseemsadesertedanddesolate.7thdayinimplementinglow-levelflightsoverthetown,fired.Thatnight,theElvesattackWuzhenconfirmedinformation.Night,burstsofgunfirecomingfromthedistance,reportedlyisDeputyCommanderWangHesongXuMiaocameNanxunsniperassaultoftheElves.8th,thesituationismoresevereinthetown.Oneafternoon,outsideEastGateandSouthGatetherewasintensegunfire.EnemyattacksbyfrustratedindependentbattalionconfrontedChenqi.Atthistime,thecommand...11th,asCommanderofZhuXi-KaiWenYongzhi,Directorof选择题1.PLC配有的存储器中内容只能读出,不能写入的存储器是()。ARAMBROMCEPROMDEEPROM答案:B2.PLC的I/O点数是指PLC上输入、输出点数()。A之和B之差C之积D无关答案:A3.PLC的运算和控制中心是()。A存储器BI/O系统C微处理器D寄存器答案:C4.()是由PLC生产厂家编写的,固化到ROM中。A系统程序B用户程序C工作程序D用户数据答案:A5.PLC输入和输出继电器的编号通常都是()。A二进制B八进制C十进制D十六进制答案:B6.()年,美国首先研制成功第一台可编程控制器。A1969B1973C1979D1989答案:A7.I/O模块是()的简称。A输入模块B输出模块C输入模块与输出模块D设备端口模块答案:C8.PLC的L+及M端口间电压一般是()伏。ADC24VBDC36VCAC110VDAC220V答案:A29.一般而言,PLC的AC输入电源电压范围是()。A24VACB85-264VACC220-380VACD24VAC-220VAC答案:B10.小型PLC一般不支持哪种编程语言()。A梯形图BC语言C顺序功能图(SFC)D指令表答案:B11.第一台PLC是由以下()公司研制成功的。AGE公司BDEC公司CABB公司DSIMENS公司答案:B12.PLC输出线圈的常开、常闭触点的使用数量是()。A50个B100个C1000个D无数个答案:D13.PLC的输入模块一般使用()来隔离内部电路和外部电路。A光电耦合器B继电器C传感器D电磁耦合答案:A14.PLC的工作方式是()。A等待工作方式B中断工作方式C扫描工作方式D循环扫描工作方式答案:D15.下列不属于PLC硬件系统组成的是()。A用户程序B输入输出接口C中央处理单元D通讯接口答案:A16.PLC使用()存储系统保存用户程序。A随机存储器RAMB只读存储器ROMC硬盘D闪存答案:A17.PLC电池电压降低至下限,处理方法是()。A没关系B及时更换电池C拆下电池停用D关机后重启答案:B18.在执行用户程序时特殊辅助继电器()为ONASM0.0BSM0.1CSM0.4DSM0.5答案:A19.选择PLC型号时,()是必须考虑的基本要素。A功耗低B先进性C体积小DI/O点数答案:D20.PLC输出方式为晶体管型时,它适用于驱动()负载.A感性B交流C直流D交直流答案:C21.工业级模拟量,哪一种更容易受干扰()。AuA级BmA级CA级D10A级答案:A通过对服装的介绍和欣赏,提高对服装文化的审美水平。通过对服装设计练习,培养学生对色彩知识、图案基础知识的综合运用能力3、通过服装设计和表演,激发和提高学生追求美、发现美、创造美的热情和能力emotionalBecauseoftheguerrillaforcesinthesurroundingareahavebeenwithdrawn,activitiesintheLake'sChengWanjunalsorefugeinJapanese,ZhuXiforcesbecamethepuppettoattackkeytargetsEvepuppetattackinginWuzhen,facetheproblemoftheretreatwastomeettheenemy,inadebatewithintheleadership,somebelievethattheelves,concentrateasuperiorforce,surelydo,earlytransferisthebestwaytoreducelosses.DeputyCommanderWangHesongimpassionedstatement:Wuzhenhold,isourmilitary'sduty!Ihavewinaseriesofvictories,morale,Wuzhenbattletovictory,fightthisbattle,aChinesemiracleinthehistoryofguerrillawarfare.CommanderZhuXididnothavemuch,butthefinalword.OnNovember5,weflewoverthetownforseveraldays,bombbursts,tremblingmoantranquiltowninthewar.Peoplehavethefeelingofacatastropheinthetown.6threconnaissancearoundthecommandpersonnelbroughtanurgentintelligence,town-widepanic,inthefaceofnewsoftheJapaneseattacktown,toavoidthescourgeofwar,themajorityofpeopleyoungandoldfledtothecountrysideinthetown.Alsohardtofindaboatintheriver.Pastthebustlingtownjustseemsadesertedanddesolate.7thdayinimplementinglow-levelflightsoverthetown,fired.Thatnight,theElvesattackWuzhenconfirmedinformation.Night,burstsofgunfirecomingfromthedistance,reportedlyisDeputyCommanderWangHesongXuMiaocameNanxunsniperassaultoftheElves.8th,thesituationismoresevereinthetown.Oneafternoon,outsideEastGateandSouthGatetherewasintensegunfire.EnemyattacksbyfrustratedindependentbattalionconfrontedChenqi.Atthistime,thecommand...11th,asCommanderofZhuXi-KaiWenYongzhi,Directorof22.梯形图的顺序执行的原则是()。A从左到右,从上到下B从右到左,从上到下C从左到右,从下到上D从右到左,从下到上答案:A23.PLC的基本单元是由()组成的。ACPU和存储器BCPU和I/O输入CCPU、存储器、I/O和电源D存储器、I/O和电源答案:C24.甲乙两个接触器,若要求甲工作后方允许乙接触器工作,则应()。A在乙线圈电路中串入甲动合触点B在乙线圈电路中串入甲动断触点C在甲线圈电路中串入乙动合触点D在甲线圈电路中串入乙动断触点答案:A25.自锁电路结构的特点是接触器的动合触点与按钮的()触点并联。A动合B常闭C动断D延时答案:A26.在控制线路中,如果两个动合触点串联,则它们是()关系。A或逻辑B与逻辑C非逻辑4D与非逻辑答案:B27.使用星—三角降压起动的电动机,正常运行时必是()连接。A星形连接B三角形连接C星形、三角形都可以D星形、三角形都不可以答案:B28.下面哪个不是PLC常用的分类方式是()。AI/O点数B结构形式CPLC功能DPLC体积答案:D29.根据I/O点数分类,500点的PLC属于()。A大型PLCB中型PLCC小型PLCD微型PLC答案:B30.目前PLC编程主要采用哪种工具进行编程()。A电脑、手持编程器B磁带、电脑C手持编程器、磁带D纸条、电脑答案:A难易程度B(中)1.()指令需要元件号。ALPSBLPPCALDDON答案:D2.梯形图中输出继电器的线圈“通电”时,()。A常闭触点闭合B对应的映象寄存器为“0”状态C对应的外部负载断电D其常开触点闭合答案:D3.梯形图中输出继电器的线圈“断电”时,()。A其常闭触点断开B对应的输出映象寄存器为“1”状态C对应的外部负载断电D其常开触点闭合答案:C4.下列陈述中不是PLC的特点的是()。A编程方法简单易学B功能强,性能价格比高C体积小,能耗低D抗干扰能力一般答案:D5.PLC